<?php

/*******************************************************************************
* Software: FPDF                                                               *
* Version:  1.53                                                               *
* Date:     2004-12-31                                                         *
* Author:   Olivier PLATHEY                                                    *
* License:  Freeware                                                           *
*                                                                              *
*******************************************************************************/
define('FPDF_FONTPATH','lib/fpdf/');

if(!class_exists('FPDF'))
{
        define('FPDF_VERSION','1.53');

        class FPDF
        {
                //Private properties
                var $page;               //current page number
                var $n;                  //current object number
                var $offsets;            //array of object offsets
                var $buffer;             //buffer holding in-memory PDF
                var $pages;              //array containing pages
                var $state;              //current document state
                var $compress;           //compression flag
                var $DefOrientation;     //default orientation
                var $CurOrientation;     //current orientation
                var $OrientationChanges; //array indicating orientation changes
                var $k;                  //scale factor (number of points in user unit)
                var $fwPt,$fhPt;         //dimensions of page format in points
                var $fw,$fh;             //dimensions of page format in user unit
                var $wPt,$hPt;           //current dimensions of page in points
                var $w,$h;               //current dimensions of page in user unit
                var $lMargin;            //left margin
                var $tMargin;            //top margin
                var $rMargin;            //right margin
                var $bMargin;            //page break margin
                var $cMargin;            //cell margin
                var $x,$y;               //current position in user unit for cell positioning
                var $lasth;              //height of last cell printed
                var $LineWidth;          //line width in user unit
                var $CoreFonts;          //array of standard font names
                var $fonts;              //array of used fonts
                var $FontFiles;          //array of font files
                var $diffs;              //array of encoding differences
                var $images;             //array of used images
                var $PageLinks;          //array of links in pages
                var $links;              //array of internal links
                var $FontFamily;         //current font family
                var $FontStyle;          //current font style
                var $underline;          //underlining flag
                var $CurrentFont;        //current font info
                var $FontSizePt;         //current font size in points
                var $FontSize;           //current font size in user unit
                var $DrawColor;          //commands for drawing color
                var $FillColor;          //commands for filling color
                var $TextColor;          //commands for text color
                var $ColorFlag;          //indicates whether fill and text colors are different
                var $ws;                 //word spacing
                var $AutoPageBreak;      //automatic page breaking
                var $PageBreakTrigger;   //threshold used to trigger page breaks
                var $InFooter;           //flag set when processing footer
                var $ZoomMode;           //zoom display mode
                var $LayoutMode;         //layout display mode
                var $title;              //title
                var $subject;            //subject
                var $author;             //author
                var $keywords;           //keywords
                var $creator;            //creator
                var $AliasNbPages;       //alias for total number of pages
                var $PDFVersion;         //PDF version number

                /*******************************************************************************
                *                                                                              *
                *                               Public methods                                 *
                *                                                                              *
                *******************************************************************************/
                function FPDF($orientation='P',$unit='mm',$format='A4')
                {
                        //Some checks
                        $this->_dochecks();
                        //Initialization of properties
                        $this->page=0;
                        $this->n=2;
                        $this->buffer='';
                        $this->pages=array();
                        $this->OrientationChanges=array();
                        $this->state=0;
                        $this->fonts=array();
                        $this->FontFiles=array();
                        $this->diffs=array();
                        $this->images=array();
                        $this->links=array();
                        $this->InFooter=false;
                        $this->lasth=0;
                        $this->FontFamily='';
                        $this->FontStyle='';
                        $this->FontSizePt=12;
                        $this->underline=false;
                        $this->DrawColor='0 G';
                        $this->FillColor='0 g';
                        $this->TextColor='0 g';
                        $this->ColorFlag=false;
                        $this->ws=0;
                        //Standard fonts
                        $this->CoreFonts=array('courier'=>'Courier','courierB'=>'Courier-Bold','courierI'=>'Courier-Oblique','courierBI'=>'Courier-BoldOblique',
                        'helvetica'=>'Helvetica','helveticaB'=>'Helvetica-Bold','helveticaI'=>'Helvetica-Oblique','helveticaBI'=>'Helvetica-BoldOblique',
                        'times'=>'Times-Roman','timesB'=>'Times-Bold','timesI'=>'Times-Italic','timesBI'=>'Times-BoldItalic',
                        'symbol'=>'Symbol','zapfdingbats'=>'ZapfDingbats');
                        //Scale factor
                        if($unit=='pt')
                        $this->k=1;
                        elseif($unit=='mm')
                        $this->k=72/25.4;
                        elseif($unit=='cm')
                        $this->k=72/2.54;
                        elseif($unit=='in')
                        $this->k=72;
                        else
                        $this->Error('Incorrect unit: '.$unit);
                        //Page format
                        if(is_string($format))
                        {
                                $format=strtolower($format);
                                if($format=='a3')
                                $format=array(841.89,1190.55);
                                elseif($format=='a4')
                                $format=array(595.28,841.89);
                                elseif($format=='a5')
                                $format=array(420.94,595.28);
                                elseif($format=='letter')
                                $format=array(612,792);
                                elseif($format=='legal')
                                $format=array(612,1008);
                                else
                                $this->Error('Unknown page format: '.$format);
                                $this->fwPt=$format[0];
                                $this->fhPt=$format[1];
                        }
                        else
                        {
                                $this->fwPt=$format[0]*$this->k;
                                $this->fhPt=$format[1]*$this->k;
                        }
                        $this->fw=$this->fwPt/$this->k;
                        $this->fh=$this->fhPt/$this->k;
                        //Page orientation
                        $orientation=strtolower($orientation);
                        if($orientation=='p' || $orientation=='portrait')
                        {
                                $this->DefOrientation='P';
                                $this->wPt=$this->fwPt;
                                $this->hPt=$this->fhPt;
                        }
                        elseif($orientation=='l' || $orientation=='landscape')
                        {
                                $this->DefOrientation='L';
                                $this->wPt=$this->fhPt;
                                $this->hPt=$this->fwPt;
                        }
                        else
                        $this->Error('Incorrect orientation: '.$orientation);
                        $this->CurOrientation=$this->DefOrientation;
                        $this->w=$this->wPt/$this->k;
                        $this->h=$this->hPt/$this->k;
                        //Page margins (1 cm)
                        $margin=28.35/$this->k;
                        $this->SetMargins($margin,$margin);
                        //Interior cell margin (1 mm)
                        $this->cMargin=$margin/10;
                        //Line width (0.2 mm)
                        $this->LineWidth=.567/$this->k;
                        //Automatic page break
                        $this->SetAutoPageBreak(true,2*$margin);
                        //Full width display mode
                        $this->SetDisplayMode('fullwidth');
                        //Enable compression
                        $this->SetCompression(true);
                        //Set default PDF version number
                        $this->PDFVersion='1.3';
                }

                function SetMargins($left,$top,$right=-1)
                {
                        //Set left, top and right margins
                        $this->lMargin=$left;
                        $this->tMargin=$top;
                        if($right==-1)
                        $right=$left;
                        $this->rMargin=$right;
                }

                function SetLeftMargin($margin)
                {
                        //Set left margin
                        $this->lMargin=$margin;
                        if($this->page>0 && $this->x<$margin)
                        $this->x=$margin;
                }

                function SetTopMargin($margin)
                {
                        //Set top margin
                        $this->tMargin=$margin;
                }

                function SetRightMargin($margin)
                {
                        //Set right margin
                        $this->rMargin=$margin;
                }

                function SetAutoPageBreak($auto,$margin=0)
                {
                        //Set auto page break mode and triggering margin
                        $this->AutoPageBreak=$auto;
                        $this->bMargin=$margin;
                        $this->PageBreakTrigger=$this->h-$margin;
                }

                function SetDisplayMode($zoom,$layout='continuous')
                {
                        //Set display mode in viewer
                        if($zoom=='fullpage' || $zoom=='fullwidth' || $zoom=='real' || $zoom=='default' || !is_string($zoom))
                        $this->ZoomMode=$zoom;
                        else
                        $this->Error('Incorrect zoom display mode: '.$zoom);
                        if($layout=='single' || $layout=='continuous' || $layout=='two' || $layout=='default')
                        $this->LayoutMode=$layout;
                        else
                        $this->Error('Incorrect layout display mode: '.$layout);
                }

                function SetCompression($compress)
                {
                        //Set page compression
                        if(function_exists('gzcompress'))
                        $this->compress=$compress;
                        else
                        $this->compress=false;
                }

                function SetTitle($title)
                {
                        //Title of document
                        $this->title=$title;
                }

                function SetSubject($subject)
                {
                        //Subject of document
                        $this->subject=$subject;
                }

                function SetAuthor($author)
                {
                        //Author of document
                        $this->author=$author;
                }

                function SetKeywords($keywords)
                {
                        //Keywords of document
                        $this->keywords=$keywords;
                }

                function SetCreator($creator)
                {
                        //Creator of document
                        $this->creator=$creator;
                }

                function AliasNbPages($alias='{nb}')
                {
                        //Define an alias for total number of pages
                        $this->AliasNbPages=$alias;
                }

                function Error($msg)
                {
                        //Fatal error
                        die('<B>FPDF error: </B>'.$msg);
                }

                function Open()
                {
                        //Begin document
                        $this->state=1;
                }

                function Close()
                {
                        //Terminate document
                        if($this->state==3)
                        return;
                        if($this->page==0)
                        $this->AddPage();
                        //Page footer
                        $this->InFooter=true;
                        $this->Footer();
                        $this->InFooter=false;
                        //Close page
                        $this->_endpage();
                        //Close document
                        $this->_enddoc();
                }

                function AddPage($orientation='')
                {
                        //Start a new page
                        if($this->state==0)
                        $this->Open();
                        $family=$this->FontFamily;
                        $style=$this->FontStyle.($this->underline ? 'U' : '');
                        $size=$this->FontSizePt;
                        $lw=$this->LineWidth;
                        $dc=$this->DrawColor;
                        $fc=$this->FillColor;
                        $tc=$this->TextColor;
                        $cf=$this->ColorFlag;
                        if($this->page>0)
                        {
                                //Page footer
                                $this->InFooter=true;
                                $this->Footer();
                                $this->InFooter=false;
                                //Close page
                                $this->_endpage();
                        }
                        //Start new page
                        $this->_beginpage($orientation);
                        //Set line cap style to square
                        $this->_out('2 J');
                        //Set line width
                        $this->LineWidth=$lw;
                        $this->_out(sprintf('%.2f w',$lw*$this->k));
                        //Set font
                        if($family)
                        $this->SetFont($family,$style,$size);
                        //Set colors
                        $this->DrawColor=$dc;
                        if($dc!='0 G')
                        $this->_out($dc);
                        $this->FillColor=$fc;
                        if($fc!='0 g')
                        $this->_out($fc);
                        $this->TextColor=$tc;
                        $this->ColorFlag=$cf;
                        //Page header
                        $this->Header();
                        //Restore line width
                        if($this->LineWidth!=$lw)
                        {
                                $this->LineWidth=$lw;
                                $this->_out(sprintf('%.2f w',$lw*$this->k));
                        }
                        //Restore font
                        if($family)
                        $this->SetFont($family,$style,$size);
                        //Restore colors
                        if($this->DrawColor!=$dc)
                        {
                                $this->DrawColor=$dc;
                                $this->_out($dc);
                        }
                        if($this->FillColor!=$fc)
                        {
                                $this->FillColor=$fc;
                                $this->_out($fc);
                        }
                        $this->TextColor=$tc;
                        $this->ColorFlag=$cf;
                }

                function Header()
                {
                        //To be implemented in your own inherited class
                }

                function Footer()
                {
                        //To be implemented in your own inherited class
                }

                function PageNo()
                {
                        //Get current page number
                        return $this->page;
                }

                function SetDrawColor($r,$g=-1,$b=-1)
                {
                        //Set color for all stroking operations
                        if(($r==0 && $g==0 && $b==0) || $g==-1)
                        $this->DrawColor=sprintf('%.3f G',$r/255);
                        else
                        $this->DrawColor=sprintf('%.3f %.3f %.3f RG',$r/255,$g/255,$b/255);
                        if($this->page>0)
                        $this->_out($this->DrawColor);
                }

                function SetFillColor($r,$g=-1,$b=-1)
                {
                        //Set color for all filling operations
                        if(($r==0 && $g==0 && $b==0) || $g==-1)
                        $this->FillColor=sprintf('%.3f g',$r/255);
                        else
                        $this->FillColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
                        $this->ColorFlag=($this->FillColor!=$this->TextColor);
                        if($this->page>0)
                        $this->_out($this->FillColor);
                }

                function SetTextColor($r,$g=-1,$b=-1)
                {
                        //Set color for text
                        if(($r==0 && $g==0 && $b==0) || $g==-1)
                        $this->TextColor=sprintf('%.3f g',$r/255);
                        else
                        $this->TextColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
                        $this->ColorFlag=($this->FillColor!=$this->TextColor);
                }

                function GetStringWidth($s)
                {
                        //Get width of a string in the current font
                        $s=(string)$s;
                        $cw=&$this->CurrentFont['cw'];
                        $w=0;
                        $l=strlen($s);
                        for($i=0;$i<$l;$i++)
                        $w+=$cw[$s{$i}];
                        return $w*$this->FontSize/1000;
                }

                function SetLineWidth($width)
                {
                        //Set line width
                        $this->LineWidth=$width;
                        if($this->page>0)
                        $this->_out(sprintf('%.2f w',$width*$this->k));
                }

                function Line($x1,$y1,$x2,$y2)
                {
                        //Draw a line
                        $this->_out(sprintf('%.2f %.2f m %.2f %.2f l S',$x1*$this->k,($this->h-$y1)*$this->k,$x2*$this->k,($this->h-$y2)*$this->k));
                }

                function Rect($x,$y,$w,$h,$style='')
                {
                        //Draw a rectangle
                        if($style=='F')
                        $op='f';
                        elseif($style=='FD' || $style=='DF')
                        $op='B';
                        else
                        $op='S';
                        $this->_out(sprintf('%.2f %.2f %.2f %.2f re %s',$x*$this->k,($this->h-$y)*$this->k,$w*$this->k,-$h*$this->k,$op));
                }

                function AddFont($family,$style='',$file='')
                {
                        //Add a TrueType or Type1 font
                        $family=strtolower($family);
                        if($file=='')
                        $file=str_replace(' ','',$family).strtolower($style).'.php';
                        if($family=='arial')
                        $family='helvetica';
                        $style=strtoupper($style);
                        if($style=='IB')
                        $style='BI';
                        $fontkey=$family.$style;
                        if(isset($this->fonts[$fontkey]))
                        $this->Error('Font already added: '.$family.' '.$style);
                        include($this->_getfontpath().$file);
                        if(!isset($name))
                        $this->Error('Could not include font definition file');
                        $i=count($this->fonts)+1;
                        $this->fonts[$fontkey]=array('i'=>$i,'type'=>$type,'name'=>$name,'desc'=>$desc,'up'=>$up,'ut'=>$ut,'cw'=>$cw,'enc'=>$enc,'file'=>$file);
                        if($diff)
                        {
                                //Search existing encodings
                                $d=0;
                                $nb=count($this->diffs);
                                for($i=1;$i<=$nb;$i++)
                                {
                                        if($this->diffs[$i]==$diff)
                                        {
                                                $d=$i;
                                                break;
                                        }
                                }
                                if($d==0)
                                {
                                        $d=$nb+1;
                                        $this->diffs[$d]=$diff;
                                }
                                $this->fonts[$fontkey]['diff']=$d;
                        }
                        if($file)
                        {
                                if($type=='TrueType')
                                $this->FontFiles[$file]=array('length1'=>$originalsize);
                                else
                                $this->FontFiles[$file]=array('length1'=>$size1,'length2'=>$size2);
                        }
                }

                function SetFont($family,$style='',$size=0)
                {
                        //Select a font; size given in points
                        global $fpdf_charwidths;

                        $family=strtolower($family);
                        if($family=='')
                        $family=$this->FontFamily;
                        if($family=='arial')
                        $family='helvetica';
                        elseif($family=='symbol' || $family=='zapfdingbats')
                        $style='';
                        $style=strtoupper($style);
                        if(strpos($style,'U')!==false)
                        {
                                $this->underline=true;
                                $style=str_replace('U','',$style);
                        }
                        else
                        $this->underline=false;
                        if($style=='IB')
                        $style='BI';
                        if($size==0)
                        $size=$this->FontSizePt;
                        //Test if font is already selected
                        if($this->FontFamily==$family && $this->FontStyle==$style && $this->FontSizePt==$size)
                        return;
                        //Test if used for the first time
                        $fontkey=$family.$style;
                        if(!isset($this->fonts[$fontkey]))
                        {
                                //Check if one of the standard fonts
                                if(isset($this->CoreFonts[$fontkey]))
                                {
                                        if(!isset($fpdf_charwidths[$fontkey]))
                                        {
                                                //Load metric file
                                                $file=$family;
                                                if($family=='times' || $family=='helvetica')
                                                $file.=strtolower($style);
                                                include($this->_getfontpath().$file.'.php');
                                                if(!isset($fpdf_charwidths[$fontkey]))
                                                $this->Error('Could not include font metric file');
                                        }
                                        $i=count($this->fonts)+1;
                                        $this->fonts[$fontkey]=array('i'=>$i,'type'=>'core','name'=>$this->CoreFonts[$fontkey],'up'=>-100,'ut'=>50,'cw'=>$fpdf_charwidths[$fontkey]);
                                }
                                else
                                $this->Error('Undefined font: '.$family.' '.$style);
                        }
                        //Select it
                        $this->FontFamily=$family;
                        $this->FontStyle=$style;
                        $this->FontSizePt=$size;
                        $this->FontSize=$size/$this->k;
                        $this->CurrentFont=&$this->fonts[$fontkey];
                        if($this->page>0)
                        $this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
                }

                function SetFontSize($size)
                {
                        //Set font size in points
                        if($this->FontSizePt==$size)
                        return;
                        $this->FontSizePt=$size;
                        $this->FontSize=$size/$this->k;
                        if($this->page>0)
                        $this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
                }

                function AddLink()
                {
                        //Create a new internal link
                        $n=count($this->links)+1;
                        $this->links[$n]=array(0,0);
                        return $n;
                }

                function SetLink($link,$y=0,$page=-1)
                {
                        //Set destination of internal link
                        if($y==-1)
                        $y=$this->y;
                        if($page==-1)
                        $page=$this->page;
                        $this->links[$link]=array($page,$y);
                }

                function Link($x,$y,$w,$h,$link)
                {
                        //Put a link on the page
                        $this->PageLinks[$this->page][]=array($x*$this->k,$this->hPt-$y*$this->k,$w*$this->k,$h*$this->k,$link);
                }

                function Text($x,$y,$txt)
                {
                        //Output a string
                        $s=sprintf('BT %.2f %.2f Td (%s) Tj ET',$x*$this->k,($this->h-$y)*$this->k,$this->_escape($txt));
                        if($this->underline && $txt!='')
                        $s.=' '.$this->_dounderline($x,$y,$txt);
                        if($this->ColorFlag)
                        $s='q '.$this->TextColor.' '.$s.' Q';
                        $this->_out($s);
                }

                function AcceptPageBreak()
                {
                        //Accept automatic page break or not
                        return $this->AutoPageBreak;
                }

                function Cell($w,$h=0,$txt='',$border=0,$ln=0,$align='',$fill=0,$link='')
                {
                        //Output a cell
                        $k=$this->k;
                        if($this->y+$h>$this->PageBreakTrigger && !$this->InFooter && $this->AcceptPageBreak())
                        {
                                //Automatic page break
                                $x=$this->x;
                                $ws=$this->ws;
                                if($ws>0)
                                {
                                        $this->ws=0;
                                        $this->_out('0 Tw');
                                }
                                $this->AddPage($this->CurOrientation);
                                $this->x=$x;
                                if($ws>0)
                                {
                                        $this->ws=$ws;
                                        $this->_out(sprintf('%.3f Tw',$ws*$k));
                                }
                        }
                        if($w==0)
                        $w=$this->w-$this->rMargin-$this->x;
                        $s='';
                        if($fill==1 || $border==1)
                        {
                                if($fill==1)
                                $op=($border==1) ? 'B' : 'f';
                                else
                                $op='S';
                                $s=sprintf('%.2f %.2f %.2f %.2f re %s ',$this->x*$k,($this->h-$this->y)*$k,$w*$k,-$h*$k,$op);
                        }
                        if(is_string($border))
                        {
                                $x=$this->x;
                                $y=$this->y;
                                if(strpos($border,'L')!==false)
                                $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,$x*$k,($this->h-($y+$h))*$k);
                                if(strpos($border,'T')!==false)
                                $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-$y)*$k);
                                if(strpos($border,'R')!==false)
                                $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',($x+$w)*$k,($this->h-$y)*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
                                if(strpos($border,'B')!==false)
                                $s.=sprintf('%.2f %.2f m %.2f %.2f l S ',$x*$k,($this->h-($y+$h))*$k,($x+$w)*$k,($this->h-($y+$h))*$k);
                        }
                        if($txt!=='')
                        {
                                if($align=='R')
                                $dx=$w-$this->cMargin-$this->GetStringWidth($txt);
                                elseif($align=='C')
                                $dx=($w-$this->GetStringWidth($txt))/2;
                                else
                                $dx=$this->cMargin;
                                if($this->ColorFlag)
                                $s.='q '.$this->TextColor.' ';
                                $txt2=str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$txt)));
                                $s.=sprintf('BT %.2f %.2f Td (%s) Tj ET',($this->x+$dx)*$k,($this->h-($this->y+.5*$h+.3*$this->FontSize))*$k,$txt2);
                                if($this->underline)
                                $s.=' '.$this->_dounderline($this->x+$dx,$this->y+.5*$h+.3*$this->FontSize,$txt);
                                if($this->ColorFlag)
                                $s.=' Q';
                                if($link)
                                $this->Link($this->x+$dx,$this->y+.5*$h-.5*$this->FontSize,$this->GetStringWidth($txt),$this->FontSize,$link);
                        }
                        if($s)
                        $this->_out($s);
                        $this->lasth=$h;
                        if($ln>0)
                        {
                                //Go to next line
                                $this->y+=$h;
                                if($ln==1)
                                $this->x=$this->lMargin;
                        }
                        else
                        $this->x+=$w;
                }

                function MultiCell($w,$h,$txt,$border=0,$align='J',$fill=0)
                {
                        //Output text with automatic or explicit line breaks
                        $cw=&$this->CurrentFont['cw'];
                        if($w==0)
                        $w=$this->w-$this->rMargin-$this->x;
                        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                        $s=str_replace("\r",'',$txt);
                        $nb=strlen($s);
                        if($nb>0 && $s[$nb-1]=="\n")
                        $nb--;
                        $b=0;
                        if($border)
                        {
                                if($border==1)
                                {
                                        $border='LTRB';
                                        $b='LRT';
                                        $b2='LR';
                                }
                                else
                                {
                                        $b2='';
                                        if(strpos($border,'L')!==false)
                                        $b2.='L';
                                        if(strpos($border,'R')!==false)
                                        $b2.='R';
                                        $b=(strpos($border,'T')!==false) ? $b2.'T' : $b2;
                                }
                        }
                        $sep=-1;
                        $i=0;
                        $j=0;
                        $l=0;
                        $ns=0;
                        $nl=1;
                        while($i<$nb)
                        {
                                //Get next character
                                $c=$s{$i};
                                if($c=="\n")
                                {
                                        //Explicit line break
                                        if($this->ws>0)
                                        {
                                                $this->ws=0;
                                                $this->_out('0 Tw');
                                        }
                                        $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
                                        $i++;
                                        $sep=-1;
                                        $j=$i;
                                        $l=0;
                                        $ns=0;
                                        $nl++;
                                        if($border && $nl==2)
                                        $b=$b2;
                                        continue;
                                }
                                if($c==' ')
                                {
                                        $sep=$i;
                                        $ls=$l;
                                        $ns++;
                                }
                                $l+=$cw[$c];
                                if($l>$wmax)
                                {
                                        //Automatic line break
                                        if($sep==-1)
                                        {
                                                if($i==$j)
                                                $i++;
                                                if($this->ws>0)
                                                {
                                                        $this->ws=0;
                                                        $this->_out('0 Tw');
                                                }
                                                $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
                                        }
                                        else
                                        {
                                                if($align=='J')
                                                {
                                                        $this->ws=($ns>1) ? ($wmax-$ls)/1000*$this->FontSize/($ns-1) : 0;
                                                        $this->_out(sprintf('%.3f Tw',$this->ws*$this->k));
                                                }
                                                $this->Cell($w,$h,substr($s,$j,$sep-$j),$b,2,$align,$fill);
                                                $i=$sep+1;
                                        }
                                        $sep=-1;
                                        $j=$i;
                                        $l=0;
                                        $ns=0;
                                        $nl++;
                                        if($border && $nl==2)
                                        $b=$b2;
                                }
                                else
                                $i++;
                        }
                        //Last chunk
                        if($this->ws>0)
                        {
                                $this->ws=0;
                                $this->_out('0 Tw');
                        }
                        if($border && strpos($border,'B')!==false)
                        $b.='B';
                        $this->Cell($w,$h,substr($s,$j,$i-$j),$b,2,$align,$fill);
                        $this->x=$this->lMargin;
                }

                function Write($h,$txt,$link='')
                {
                        //Output text in flowing mode
                        $cw=&$this->CurrentFont['cw'];
                        $w=$this->w-$this->rMargin-$this->x;
                        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                        $s=str_replace("\r",'',$txt);
                        $nb=strlen($s);
                        $sep=-1;
                        $i=0;
                        $j=0;
                        $l=0;
                        $nl=1;
                        while($i<$nb)
                        {
                                //Get next character
                                $c=$s{$i};
                                if($c=="\n")
                                {
                                        //Explicit line break
                                        $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
                                        $i++;
                                        $sep=-1;
                                        $j=$i;
                                        $l=0;
                                        if($nl==1)
                                        {
                                                $this->x=$this->lMargin;
                                                $w=$this->w-$this->rMargin-$this->x;
                                                $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                                        }
                                        $nl++;
                                        continue;
                                }
                                if($c==' ')
                                $sep=$i;
                                $l+=$cw[$c];
                                if($l>$wmax)
                                {
                                        //Automatic line break
                                        if($sep==-1)
                                        {
                                                if($this->x>$this->lMargin)
                                                {
                                                        //Move to next line
                                                        $this->x=$this->lMargin;
                                                        $this->y+=$h;
                                                        $w=$this->w-$this->rMargin-$this->x;
                                                        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                                                        $i++;
                                                        $nl++;
                                                        continue;
                                                }
                                                if($i==$j)
                                                $i++;
                                                $this->Cell($w,$h,substr($s,$j,$i-$j),0,2,'',0,$link);
                                        }
                                        else
                                        {
                                                $this->Cell($w,$h,substr($s,$j,$sep-$j),0,2,'',0,$link);
                                                $i=$sep+1;
                                        }
                                        $sep=-1;
                                        $j=$i;
                                        $l=0;
                                        if($nl==1)
                                        {
                                                $this->x=$this->lMargin;
                                                $w=$this->w-$this->rMargin-$this->x;
                                                $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
                                        }
                                        $nl++;
                                }
                                else
                                $i++;
                        }
                        //Last chunk
                        if($i!=$j)
                        $this->Cell($l/1000*$this->FontSize,$h,substr($s,$j),0,0,'',0,$link);
                }

                function Image($file,$x,$y,$w=0,$h=0,$type='',$link='')
                {
                        //Put an image on the page
                        if(!isset($this->images[$file]))
                        {
                                //First use of image, get info
                                if($type=='')
                                {
                                        $pos=strrpos($file,'.');
                                        if(!$pos)
                                        $this->Error('Image file has no extension and no type was specified: '.$file);
                                        $type=substr($file,$pos+1);
                                }
                                $type=strtolower($type);
                                $mqr=get_magic_quotes_runtime();
                                set_magic_quotes_runtime(0);
                                if($type=='jpg' || $type=='jpeg')
                                $info=$this->_parsejpg($file);
                                elseif($type=='png')
                                $info=$this->_parsepng($file);
                                else
                                {
                                        //Allow for additional formats
                                        $mtd='_parse'.$type;
                                        if(!method_exists($this,$mtd))
                                        $this->Error('Unsupported image type: '.$type);
                                        $info=$this->$mtd($file);
                                }
                                set_magic_quotes_runtime($mqr);
                                $info['i']=count($this->images)+1;
                                $this->images[$file]=$info;
                        }
                        else
                        $info=$this->images[$file];
                        //Automatic width and height calculation if needed
                        if($w==0 && $h==0)
                        {
                                //Put image at 72 dpi
                                $w=$info['w']/$this->k;
                                $h=$info['h']/$this->k;
                        }
                        if($w==0)
                        $w=$h*$info['w']/$info['h'];
                        if($h==0)
                        $h=$w*$info['h']/$info['w'];
                        $this->_out(sprintf('q %.2f 0 0 %.2f %.2f %.2f cm /I%d Do Q',$w*$this->k,$h*$this->k,$x*$this->k,($this->h-($y+$h))*$this->k,$info['i']));
                        if($link)
                        $this->Link($x,$y,$w,$h,$link);
                }

                function Ln($h='')
                {
                        //Line feed; default value is last cell height
                        $this->x=$this->lMargin;
                        if(is_string($h))
                        $this->y+=$this->lasth;
                        else
                        $this->y+=$h;
                }

                function GetX()
                {
                        //Get x position
                        return $this->x;
                }

                function SetX($x)
                {
                        //Set x position
                        if($x>=0)
                        $this->x=$x;
                        else
                        $this->x=$this->w+$x;
                }

                function GetY()
                {
                        //Get y position
                        return $this->y;
                }

                function SetY($y)
                {
                        //Set y position and reset x
                        $this->x=$this->lMargin;
                        if($y>=0)
                        $this->y=$y;
                        else
                        $this->y=$this->h+$y;
                }

                function SetXY($x,$y)
                {
                        //Set x and y positions
                        $this->SetY($y);
                        $this->SetX($x);
                }

                function Output($name='',$dest='')
                {
                        //Output PDF to some destination
                        //Finish document if necessary
                        if($this->state<3)
                        $this->Close();
                        //Normalize parameters
                        if(is_bool($dest))
                        $dest=$dest ? 'D' : 'F';
                        $dest=strtoupper($dest);
                        if($dest=='')
                        {
                                if($name=='')
                                {
                                        $name='doc.pdf';
                                        $dest='I';
                                }
                                else
                                $dest='F';
                        }
                        switch($dest)
                        {
                                case 'I':
                                //Send to standard output
                                if(ob_get_contents())
                                $this->Error('Some data has already been output, can\'t send PDF file');
                                if(php_sapi_name()!='cli')
                                {
                                        //We send to a browser
                                        header('Content-Type: application/pdf');
                                        if(headers_sent())
                                        $this->Error('Some data has already been output to browser, can\'t send PDF file');
                                        header('Content-Length: '.strlen($this->buffer));
                                        header('Content-disposition: inline; filename="'.$name.'"');
                                }
                                echo $this->buffer;
                                break;
                                case 'D':
                                //Download file
                                if(ob_get_contents())
                                $this->Error('Some data has already been output, can\'t send PDF file');
                                if(isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'],'MSIE'))
                                header('Content-Type: application/force-download');
                                else
                                header('Content-Type: application/octet-stream');
                                if(headers_sent())
                                $this->Error('Some data has already been output to browser, can\'t send PDF file');
                                header('Content-Length: '.strlen($this->buffer));
                                header('Content-disposition: attachment; filename="'.$name.'"');
                                echo $this->buffer;
                                break;
                                case 'F':
                                //Save to local file
                                $f=fopen($name,'wb');
                                if(!$f)
                                $this->Error('Unable to create output file: '.$name);
                                fwrite($f,$this->buffer,strlen($this->buffer));
                                fclose($f);
                                break;
                                case 'S':
                                //Return as a string
                                return $this->buffer;
                                default:
                                $this->Error('Incorrect output destination: '.$dest);
                        }
                        return '';
                }

                /*******************************************************************************
                *                                                                              *
                *                              Protected methods                               *
                *                                                                              *
                *******************************************************************************/
                function _dochecks()
                {
                        //Check for locale-related bug
                        if(1.1==1)
                        $this->Error('Don\'t alter the locale before including class file');
                        //Check for decimal separator
                        if(sprintf('%.1f',1.0)!='1.0')
                        setlocale(LC_NUMERIC,'C');
                }

                function _getfontpath()
                {
                        if(!defined('FPDF_FONTPATH') && is_dir(dirname(__FILE__).'/font'))
                        define('FPDF_FONTPATH',dirname(__FILE__).'/font/');
                        return defined('FPDF_FONTPATH') ? FPDF_FONTPATH : '';
                }

                function _putpages()
                {
                        $nb=$this->page;
                        if(!empty($this->AliasNbPages))
                        {
                                //Replace number of pages
                                for($n=1;$n<=$nb;$n++)
                                $this->pages[$n]=str_replace($this->AliasNbPages,$nb,$this->pages[$n]);
                        }
                        if($this->DefOrientation=='P')
                        {
                                $wPt=$this->fwPt;
                                $hPt=$this->fhPt;
                        }
                        else
                        {
                                $wPt=$this->fhPt;
                                $hPt=$this->fwPt;
                        }
                        $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
                        for($n=1;$n<=$nb;$n++)
                        {
                                //Page
                                $this->_newobj();
                                $this->_out('<</Type /Page');
                                $this->_out('/Parent 1 0 R');
                                if(isset($this->OrientationChanges[$n]))
                                $this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$hPt,$wPt));
                                $this->_out('/Resources 2 0 R');
                                if(isset($this->PageLinks[$n]))
                                {
                                        //Links
                                        $annots='/Annots [';
                                        foreach($this->PageLinks[$n] as $pl)
                                        {
                                                $rect=sprintf('%.2f %.2f %.2f %.2f',$pl[0],$pl[1],$pl[0]+$pl[2],$pl[1]-$pl[3]);
                                                $annots.='<</Type /Annot /Subtype /Link /Rect ['.$rect.'] /Border [0 0 0] ';
                                                if(is_string($pl[4]))
                                                $annots.='/A <</S /URI /URI '.$this->_textstring($pl[4]).'>>>>';
                                                else
                                                {
                                                        $l=$this->links[$pl[4]];
                                                        $h=isset($this->OrientationChanges[$l[0]]) ? $wPt : $hPt;
                                                        $annots.=sprintf('/Dest [%d 0 R /XYZ 0 %.2f null]>>',1+2*$l[0],$h-$l[1]*$this->k);
                                                }
                                        }
                                        $this->_out($annots.']');
                                }
                                $this->_out('/Contents '.($this->n+1).' 0 R>>');
                                $this->_out('endobj');
                                //Page content
                                $p=($this->compress) ? gzcompress($this->pages[$n]) : $this->pages[$n];
                                $this->_newobj();
                                $this->_out('<<'.$filter.'/Length '.strlen($p).'>>');
                                $this->_putstream($p);
                                $this->_out('endobj');
                        }
                        //Pages root
                        $this->offsets[1]=strlen($this->buffer);
                        $this->_out('1 0 obj');
                        $this->_out('<</Type /Pages');
                        $kids='/Kids [';
                        for($i=0;$i<$nb;$i++)
                        $kids.=(3+2*$i).' 0 R ';
                        $this->_out($kids.']');
                        $this->_out('/Count '.$nb);
                        $this->_out(sprintf('/MediaBox [0 0 %.2f %.2f]',$wPt,$hPt));
                        $this->_out('>>');
                        $this->_out('endobj');
                }

                function _putfonts()
                {
                        $nf=$this->n;
                        foreach($this->diffs as $diff)
                        {
                                //Encodings
                                $this->_newobj();
                                $this->_out('<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences ['.$diff.']>>');
                                $this->_out('endobj');
                        }
                        $mqr=get_magic_quotes_runtime();
                        set_magic_quotes_runtime(0);
                        foreach($this->FontFiles as $file=>$info)
                        {
                                //Font file embedding
                                $this->_newobj();
                                $this->FontFiles[$file]['n']=$this->n;
                                $font='';
                                $f=fopen($this->_getfontpath().$file,'rb',1);
                                if(!$f)
                                $this->Error('Font file not found');
                                while(!feof($f))
                                $font.=fread($f,8192);
                                fclose($f);
                                $compressed=(substr($file,-2)=='.z');
                                if(!$compressed && isset($info['length2']))
                                {
                                        $header=(ord($font{0})==128);
                                        if($header)
                                        {
                                                //Strip first binary header
                                                $font=substr($font,6);
                                        }
                                        if($header && ord($font{$info['length1']})==128)
                                        {
                                                //Strip second binary header
                                                $font=substr($font,0,$info['length1']).substr($font,$info['length1']+6);
                                        }
                                }
                                $this->_out('<</Length '.strlen($font));
                                if($compressed)
                                $this->_out('/Filter /FlateDecode');
                                $this->_out('/Length1 '.$info['length1']);
                                if(isset($info['length2']))
                                $this->_out('/Length2 '.$info['length2'].' /Length3 0');
                                $this->_out('>>');
                                $this->_putstream($font);
                                $this->_out('endobj');
                        }
                        set_magic_quotes_runtime($mqr);
                        foreach($this->fonts as $k=>$font)
                        {
                                //Font objects
                                $this->fonts[$k]['n']=$this->n+1;
                                $type=$font['type'];
                                $name=$font['name'];
                                if($type=='core')
                                {
                                        //Standard font
                                        $this->_newobj();
                                        $this->_out('<</Type /Font');
                                        $this->_out('/BaseFont /'.$name);
                                        $this->_out('/Subtype /Type1');
                                        if($name!='Symbol' && $name!='ZapfDingbats')
                                        $this->_out('/Encoding /WinAnsiEncoding');
                                        $this->_out('>>');
                                        $this->_out('endobj');
                                }
                                elseif($type=='Type1' || $type=='TrueType')
                                {
                                        //Additional Type1 or TrueType font
                                        $this->_newobj();
                                        $this->_out('<</Type /Font');
                                        $this->_out('/BaseFont /'.$name);
                                        $this->_out('/Subtype /'.$type);
                                        $this->_out('/FirstChar 32 /LastChar 255');
                                        $this->_out('/Widths '.($this->n+1).' 0 R');
                                        $this->_out('/FontDescriptor '.($this->n+2).' 0 R');
                                        if($font['enc'])
                                        {
                                                if(isset($font['diff']))
                                                $this->_out('/Encoding '.($nf+$font['diff']).' 0 R');
                                                else
                                                $this->_out('/Encoding /WinAnsiEncoding');
                                        }
                                        $this->_out('>>');
                                        $this->_out('endobj');
                                        //Widths
                                        $this->_newobj();
                                        $cw=&$font['cw'];
                                        $s='[';
                                        for($i=32;$i<=255;$i++)
                                        $s.=$cw[chr($i)].' ';
                                        $this->_out($s.']');
                                        $this->_out('endobj');
                                        //Descriptor
                                        $this->_newobj();
                                        $s='<</Type /FontDescriptor /FontName /'.$name;
                                        foreach($font['desc'] as $k=>$v)
                                        $s.=' /'.$k.' '.$v;
                                        $file=$font['file'];
                                        if($file)
                                        $s.=' /FontFile'.($type=='Type1' ? '' : '2').' '.$this->FontFiles[$file]['n'].' 0 R';
                                        $this->_out($s.'>>');
                                        $this->_out('endobj');
                                }
                                else
                                {
                                        //Allow for additional types
                                        $mtd='_put'.strtolower($type);
                                        if(!method_exists($this,$mtd))
                                        $this->Error('Unsupported font type: '.$type);
                                        $this->$mtd($font);
                                }
                        }
                }

                function _putimages()
                {
                        $filter=($this->compress) ? '/Filter /FlateDecode ' : '';
                        reset($this->images);
                        while(list($file,$info)=each($this->images))
                        {
                                $this->_newobj();
                                $this->images[$file]['n']=$this->n;
                                $this->_out('<</Type /XObject');
                                $this->_out('/Subtype /Image');
                                $this->_out('/Width '.$info['w']);
                                $this->_out('/Height '.$info['h']);
                                if($info['cs']=='Indexed')
                                $this->_out('/ColorSpace [/Indexed /DeviceRGB '.(strlen($info['pal'])/3-1).' '.($this->n+1).' 0 R]');
                                else
                                {
                                        $this->_out('/ColorSpace /'.$info['cs']);
                                        if($info['cs']=='DeviceCMYK')
                                        $this->_out('/Decode [1 0 1 0 1 0 1 0]');
                                }
                                $this->_out('/BitsPerComponent '.$info['bpc']);
                                if(isset($info['f']))
                                $this->_out('/Filter /'.$info['f']);
                                if(isset($info['parms']))
                                $this->_out($info['parms']);
                                if(isset($info['trns']) && is_array($info['trns']))
                                {
                                        $trns='';
                                        for($i=0;$i<count($info['trns']);$i++)
                                        $trns.=$info['trns'][$i].' '.$info['trns'][$i].' ';
                                        $this->_out('/Mask ['.$trns.']');
                                }
                                $this->_out('/Length '.strlen($info['data']).'>>');
                                $this->_putstream($info['data']);
                                unset($this->images[$file]['data']);
                                $this->_out('endobj');
                                //Palette
                                if($info['cs']=='Indexed')
                                {
                                        $this->_newobj();
                                        $pal=($this->compress) ? gzcompress($info['pal']) : $info['pal'];
                                        $this->_out('<<'.$filter.'/Length '.strlen($pal).'>>');
                                        $this->_putstream($pal);
                                        $this->_out('endobj');
                                }
                        }
                }

                function _putxobjectdict()
                {
                        foreach($this->images as $image)
                        $this->_out('/I'.$image['i'].' '.$image['n'].' 0 R');
                }

                function _putresourcedict()
                {
                        $this->_out('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
                        $this->_out('/Font <<');
                        foreach($this->fonts as $font)
                        $this->_out('/F'.$font['i'].' '.$font['n'].' 0 R');
                        $this->_out('>>');
                        $this->_out('/XObject <<');
                        $this->_putxobjectdict();
                        $this->_out('>>');
                }

                function _putresources()
                {
                        $this->_putfonts();
                        $this->_putimages();
                        //Resource dictionary
                        $this->offsets[2]=strlen($this->buffer);
                        $this->_out('2 0 obj');
                        $this->_out('<<');
                        $this->_putresourcedict();
                        $this->_out('>>');
                        $this->_out('endobj');
                }

                function _putinfo()
                {
                        $this->_out('/Producer '.$this->_textstring('FPDF '.FPDF_VERSION));
                        if(!empty($this->title))
                        $this->_out('/Title '.$this->_textstring($this->title));
                        if(!empty($this->subject))
                        $this->_out('/Subject '.$this->_textstring($this->subject));
                        if(!empty($this->author))
                        $this->_out('/Author '.$this->_textstring($this->author));
                        if(!empty($this->keywords))
                        $this->_out('/Keywords '.$this->_textstring($this->keywords));
                        if(!empty($this->creator))
                        $this->_out('/Creator '.$this->_textstring($this->creator));
                        $this->_out('/CreationDate '.$this->_textstring('D:'.date('YmdHis')));
                }

                function _putcatalog()
                {
                        $this->_out('/Type /Catalog');
                        $this->_out('/Pages 1 0 R');
                        if($this->ZoomMode=='fullpage')
                        $this->_out('/OpenAction [3 0 R /Fit]');
                        elseif($this->ZoomMode=='fullwidth')
                        $this->_out('/OpenAction [3 0 R /FitH null]');
                        elseif($this->ZoomMode=='real')
                        $this->_out('/OpenAction [3 0 R /XYZ null null 1]');
                        elseif(!is_string($this->ZoomMode))
                        $this->_out('/OpenAction [3 0 R /XYZ null null '.($this->ZoomMode/100).']');
                        if($this->LayoutMode=='single')
                        $this->_out('/PageLayout /SinglePage');
                        elseif($this->LayoutMode=='continuous')
                        $this->_out('/PageLayout /OneColumn');
                        elseif($this->LayoutMode=='two')
                        $this->_out('/PageLayout /TwoColumnLeft');
                }

                function _putheader()
                {
                        $this->_out('%PDF-'.$this->PDFVersion);
                }

                function _puttrailer()
                {
                        $this->_out('/Size '.($this->n+1));
                        $this->_out('/Root '.$this->n.' 0 R');
                        $this->_out('/Info '.($this->n-1).' 0 R');
                }

                function _enddoc()
                {
                        $this->_putheader();
                        $this->_putpages();
                        $this->_putresources();
                        //Info
                        $this->_newobj();
                        $this->_out('<<');
                        $this->_putinfo();
                        $this->_out('>>');
                        $this->_out('endobj');
                        //Catalog
                        $this->_newobj();
                        $this->_out('<<');
                        $this->_putcatalog();
                        $this->_out('>>');
                        $this->_out('endobj');
                        //Cross-ref
                        $o=strlen($this->buffer);
                        $this->_out('xref');
                        $this->_out('0 '.($this->n+1));
                        $this->_out('0000000000 65535 f ');
                        for($i=1;$i<=$this->n;$i++)
                        $this->_out(sprintf('%010d 00000 n ',$this->offsets[$i]));
                        //Trailer
                        $this->_out('trailer');
                        $this->_out('<<');
                        $this->_puttrailer();
                        $this->_out('>>');
                        $this->_out('startxref');
                        $this->_out($o);
                        $this->_out('%%EOF');
                        $this->state=3;
                }

                function _beginpage($orientation)
                {
                        $this->page++;
                        $this->pages[$this->page]='';
                        $this->state=2;
                        $this->x=$this->lMargin;
                        $this->y=$this->tMargin;
                        $this->FontFamily='';
                        //Page orientation
                        if(!$orientation)
                        $orientation=$this->DefOrientation;
                        else
                        {
                                $orientation=strtoupper($orientation{0});
                                if($orientation!=$this->DefOrientation)
                                $this->OrientationChanges[$this->page]=true;
                        }
                        if($orientation!=$this->CurOrientation)
                        {
                                //Change orientation
                                if($orientation=='P')
                                {
                                        $this->wPt=$this->fwPt;
                                        $this->hPt=$this->fhPt;
                                        $this->w=$this->fw;
                                        $this->h=$this->fh;
                                }
                                else
                                {
                                        $this->wPt=$this->fhPt;
                                        $this->hPt=$this->fwPt;
                                        $this->w=$this->fh;
                                        $this->h=$this->fw;
                                }
                                $this->PageBreakTrigger=$this->h-$this->bMargin;
                                $this->CurOrientation=$orientation;
                        }
                }

                function _endpage()
                {
                        //End of page contents
                        $this->state=1;
                }

                function _newobj()
                {
                        //Begin a new object
                        $this->n++;
                        $this->offsets[$this->n]=strlen($this->buffer);
                        $this->_out($this->n.' 0 obj');
                }

                function _dounderline($x,$y,$txt)
                {
                        //Underline text
                        $up=$this->CurrentFont['up'];
                        $ut=$this->CurrentFont['ut'];
                        $w=$this->GetStringWidth($txt)+$this->ws*substr_count($txt,' ');
                        return sprintf('%.2f %.2f %.2f %.2f re f',$x*$this->k,($this->h-($y-$up/1000*$this->FontSize))*$this->k,$w*$this->k,-$ut/1000*$this->FontSizePt);
                }

                function _parsejpg($file)
                {
                        //Extract info from a JPEG file
                        $a=GetImageSize($file);
                        if(!$a)
                        $this->Error('Missing or incorrect image file: '.$file);
                        if($a[2]!=2)
                        $this->Error('Not a JPEG file: '.$file);
                        if(!isset($a['channels']) || $a['channels']==3)
                        $colspace='DeviceRGB';
                        elseif($a['channels']==4)
                        $colspace='DeviceCMYK';
                        else
                        $colspace='DeviceGray';
                        $bpc=isset($a['bits']) ? $a['bits'] : 8;
                        //Read whole file
                        $f=fopen($file,'rb');
                        $data='';
                        while(!feof($f))
                        $data.=fread($f,4096);
                        fclose($f);
                        return array('w'=>$a[0],'h'=>$a[1],'cs'=>$colspace,'bpc'=>$bpc,'f'=>'DCTDecode','data'=>$data);
                }

                function _parsepng($file)
                {
                        //Extract info from a PNG file
                        $f=fopen($file,'rb');
                        if(!$f)
                        $this->Error('Can\'t open image file: '.$file);
                        //Check signature
                        if(fread($f,8)!=chr(137).'PNG'.chr(13).chr(10).chr(26).chr(10))
                        $this->Error('Not a PNG file: '.$file);
                        //Read header chunk
                        fread($f,4);
                        if(fread($f,4)!='IHDR')
                        $this->Error('Incorrect PNG file: '.$file);
                        $w=$this->_freadint($f);
                        $h=$this->_freadint($f);
                        $bpc=ord(fread($f,1));
                        if($bpc>8)
                        $this->Error('16-bit depth not supported: '.$file);
                        $ct=ord(fread($f,1));
                        if($ct==0)
                        $colspace='DeviceGray';
                        elseif($ct==2)
                        $colspace='DeviceRGB';
                        elseif($ct==3)
                        $colspace='Indexed';
                        else
                        $this->Error('Alpha channel not supported: '.$file);
                        if(ord(fread($f,1))!=0)
                        $this->Error('Unknown compression method: '.$file);
                        if(ord(fread($f,1))!=0)
                        $this->Error('Unknown filter method: '.$file);
                        if(ord(fread($f,1))!=0)
                        $this->Error('Interlacing not supported: '.$file);
                        fread($f,4);
                        $parms='/DecodeParms <</Predictor 15 /Colors '.($ct==2 ? 3 : 1).' /BitsPerComponent '.$bpc.' /Columns '.$w.'>>';
                        //Scan chunks looking for palette, transparency and image data
                        $pal='';
                        $trns='';
                        $data='';
                        do
                        {
                                $n=$this->_freadint($f);
                                $type=fread($f,4);
                                if($type=='PLTE')
                                {
                                        //Read palette
                                        $pal=fread($f,$n);
                                        fread($f,4);
                                }
                                elseif($type=='tRNS')
                                {
                                        //Read transparency info
                                        $t=fread($f,$n);
                                        if($ct==0)
                                        $trns=array(ord(substr($t,1,1)));
                                        elseif($ct==2)
                                        $trns=array(ord(substr($t,1,1)),ord(substr($t,3,1)),ord(substr($t,5,1)));
                                        else
                                        {
                                                $pos=strpos($t,chr(0));
                                                if($pos!==false)
                                                $trns=array($pos);
                                        }
                                        fread($f,4);
                                }
                                elseif($type=='IDAT')
                                {
                                        //Read image data block
                                        $data.=fread($f,$n);
                                        fread($f,4);
                                }
                                elseif($type=='IEND')
                                break;
                                else
                                fread($f,$n+4);
                        }
                        while($n);
                        if($colspace=='Indexed' && empty($pal))
                        $this->Error('Missing palette in '.$file);
                        fclose($f);
                        return array('w'=>$w,'h'=>$h,'cs'=>$colspace,'bpc'=>$bpc,'f'=>'FlateDecode','parms'=>$parms,'pal'=>$pal,'trns'=>$trns,'data'=>$data);
                }

                function _freadint($f)
                {
                        //Read a 4-byte integer from file
                        $a=unpack('Ni',fread($f,4));
                        return $a['i'];
                }

                function _textstring($s)
                {
                        //Format a text string
                        return '('.$this->_escape($s).')';
                }

                function _escape($s)
                {
                        //Add \ before \, ( and )
                        return str_replace(')','\\)',str_replace('(','\\(',str_replace('\\','\\\\',$s)));
                }

                function _putstream($s)
                {
                        $this->_out('stream');
                        $this->_out($s);
                        $this->_out('endstream');
                }

                function _out($s)
                {
                        //Add a line to the document
                        if($this->state==2)
                        $this->pages[$this->page].=$s."\n";
                        else
                        $this->buffer.=$s."\n";
                }
                //End of class
        }

        //Handle special IE contype request
        if(isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT']=='contype')
        {
                header('Content-Type: application/pdf');
                exit;
        }

}
?>